Scrum for Trello

Scrum for Trello adds functionality to the awesome trello.com for use in Scrum projects.
** Update Feb 26, 2015 **
- Fixed compatibility with lastest Trello version
** Update Mar 29, 2014 **
- Fixed compatibility with lastest Trello version
** Update Jan 14, 2014 **
- List totals show again in the new Trello.com
** Update Dec 23, 2013 **
- Upon frequent request: Settings screen to add your custom storypoints range.
- compatibility new version of Trello.com
** Update Nov 6, 2013 **
- fixed issues on Windows 7 + 8
- added integration with Burndown for Trello. Thanks to @seancolombo
** Update July 31, 2013 **
- new load model in Trello. Extension is working again!
** Update June 17, 2013 **
- many fixes. Thanks for the pull requests!
** Update Apr 10, 2013 **
- Fixed compatibility with latest Trello release
** Update Dec 20, 2012 **
- Fixed count when filter is applied and fixed total count
** Update Sep 8, 2012 **
- Fixed compatibility with latest Trello release. Scrum for Trello is working again!
** Update Sep 4, 2012 **
- Added a nice feature contributed by Cedric Gatay:
One thing we use often is surrounding points of done tasks with [] to prevent them for being counted by the plugin in the list total.
This contain the ability to display such tasks with a decent style (half-transparency) on cards and a differentiated total shown on lists.
Trello is the perfect online equivalent of the whiteboard with sticky notes aka the Scrum board. We love this app and started using it immediately after launch.
One element we use a lot in our projects are the storypoints. Scrum for Trello gives you the ability to make use of story points within Trello.
Setup
Scrum for Trello is a Chrome extension and you can install it via the Chrome Webstore.
How does it work?
In the card titles you can add the storypoints between parentheses. The assigned points will be picked up by Scrum for Trello and displayed in the upper right corner of the card.
For each list the total amount of story points will be calculated and shown in the title of the list.
Every second the story points will be detected and calculated. So changing a number or moving a card will be reflected almost immediately.
Updates
Great improvements made by @nicpottier and @paullofte:
* The point value is moved to be a badge on the card.
* Added support for Zero Point Cards (0), Unknown Point Cards (?), Decimal Value Cards (.5)
* In addition I added the functionality to have the list total reflect the current filtered set of cards.
More great improvements
* @bastiaanterhorst created a storypoint icon to fit in nicely with the Trello style
* bugfixes by @mgan59
* A very cool storypoint picker made by @nicpottier was integrated and adapted. Click on the title in the card view and a little menu shows you available points to quickly select. Of course you can add your own points between parentheses still.
Credits
Scrum for Trello was developed by Marcel Duin (http://webglmarcel.q42.net/) and Jasper Kaizer (https://twitter.com/jkaizer) during our pet projects time at Q42 (http://q42.com).
They team up with Sean Colombo (https://twitter.com/seancolombo).
You can download the source code at http://github.com/Q42/TrelloScrum. Or even better, improve it and do a pull request!
Privacy
Scrum for Trello runs locally only and stores nothing on any server!
See: http://webapps.stackexchange.com/questions/23462/what-kind-of-data-does-trelloscrum-keep